Air outlet component and ceiling machine having the same

Abstract

The present invention provides an air outlet component and a ceiling crane having the same, comprising: an air outlet frame, the air outlet frame being provided with an air inlet and an air outlet, the air inlet and the air outlet being spaced apart; a flow guide structure disposed within the air outlet, the air outlet having a first air outlet edge and a second air outlet edge disposed opposite each other, the second air outlet edge being located on a side of the first air outlet edge away from the air inlet, and the flow guide structure being located between the first and second air outlet edges; the flow guide structure being provided protruding from a side of the first air outlet edge away from the air outlet of the air outlet, and having a relief portion on a side of the flow guide structure close to the first air outlet edge. The technical solution provided by the present invention can solve the technical problem of high air outlet noise in ceiling cranes in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to an air outlet component and a ceiling fan having the same. Background Art

[0002] At present, overhead air conditioners are widely used in multiple shells such as unit units, export unit units and multi-split units. Overhead air conditioners have a long air supply distance, beautiful appearance and do not take up space. They have been favored by more and more consumers and have huge market demand.

[0003] However, the fan in the existing technology has an evaporator installed between the fan blade outlet and the air outlet of the ceiling fan. The evaporator creates a large resistance to the air outlet of the fan blade, resulting in uneven static pressure distribution in the transverse section of the air outlet flow channel. The air flow will flow laterally, and the uneven flow will generate vortices, which will increase the air outlet noise of the ceiling fan and reduce the efficiency of the fan. Summary of the Invention

[0004] The main purpose of the present invention is to provide an air outlet component and a ceiling crane having the same, so as to solve the technical problem of high air outlet noise in the ceiling crane in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present invention, there is provided an air outlet component, comprising:

[0006] An air outlet frame is provided with an air inlet portion and an air outlet portion, and the air inlet portion and the air outlet portion are spaced apart;

[0007] The air guide structure is arranged in the air outlet portion, the air outlet portion has a first air outlet edge and a second air outlet edge arranged opposite to each other, the second air outlet edge is located on a side of the first air outlet edge away from the air inlet portion, and the air guide structure is located between the first air outlet edge and the second air outlet edge;

[0008] The guide structure is provided on a side of the first air outlet edge that is protruding away from the air outlet of the air outlet portion, and a side of the guide structure that is close to the first air outlet edge has a avoiding portion.

[0009] Furthermore, along the air outlet direction of the air outlet portion, the air guide structure has a first air guide end and a second air guide end that are arranged opposite to each other, and the avoidance portion is a avoidance slope, which is located on the side of the first air guide end.

[0010] Furthermore, the second air guiding end is spaced apart from the air outlet of the air outlet portion.

[0011] Furthermore, the length of the second air guide end is l1, and the distance between the second air guide end and the air outlet of the air outlet portion is h1;

[0012] Among them, 0.1≤h1 / l1≤0.4.

[0013] Furthermore, the length of the first air guide end is l2, and the height of the air guide structure is h;

[0014] Among them, 0.2≤l2 / h≤0.5.

[0015] Furthermore, a plurality of flow-guiding structures are provided in the air outlet portion, and the plurality of flow-guiding structures are evenly distributed along the length direction of the air outlet portion.

[0016] Furthermore, a plurality of guide structures are provided in the air outlet, and the height of the guide structure is h;

[0017] When (h-60) / 15 is an integer, n=(h-60) / 15;

[0018] When (h-60) / 15 is not an integer, n is the smallest integer obtained by rounding up (h-60) / 15.

[0019] Furthermore, along the air outlet direction of the air outlet portion, the air guide structure has a first air guide portion and a second air guide portion that are connected to each other; along the air outlet direction of the air outlet portion, the air guide width of the second air guide portion gradually decreases.

[0020] Furthermore, along the air outlet direction of the air outlet portion, the second air guide portion has a first air guide width d2 and a second air guide width d1 that are oppositely arranged;

[0021] Where, 1.2≤d2 / d1≤2; and / or,

[0022] 2mm≤d1≤2.5mm.

[0023] According to another aspect of the present invention, a rooftop machine is provided, comprising the air outlet component provided above.

[0024] By applying the technical solution of the present invention, an air inlet and an air outlet are arranged at intervals on the air outlet frame, and a guide structure is arranged in the air outlet, which can effectively guide the air flow in the air outlet duct, reduce turbulence, reduce turbulent kinetic energy, and uniformize the air outlet pressure, thereby solving the problems of high air outlet noise and low fan efficiency in the prior art of the ceiling fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 A schematic structural diagram of an air outlet component according to a first embodiment of the present invention is shown;

[0027] Figure 2 shows a cross-sectional view of an air outlet component according to a first embodiment of the present invention;

[0028] Figure 3 Shows a schematic diagram of the installation of the guide structure according to the first embodiment of the present invention;

[0029] Figure 4 shows a top view of a flow guide structure according to a first embodiment of the present invention;

[0030] Figure 5 A graph showing experimental data comparing air volume under the same rotation speed between a guide structure according to an embodiment of the present invention and the prior art is shown;

[0031] Figure 6 A graph showing experimental data of noise comparison between a guide structure according to an embodiment of the present invention and the prior art under the same air volume;

[0032] Figure 7 A power comparison experimental data diagram of a guide structure according to an embodiment of the present invention and the prior art under the same wind volume is shown.

[0033] The above drawings include the following reference numerals:

[0034] 10. Air outlet frame; 11. Air inlet; 12. Air outlet; 13. First air outlet edge; 14. Second air outlet edge;

[0035] 20. Air guide structure; 21. First air guide end; 22. Second air guide end; 23. Avoidance portion; 24. First air guide portion; 25. Second air guide portion;

[0036] 30. Evaporator;

[0037] 40. Wind blades. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] like Figures 1 to 4 As shown, in the first embodiment of the present invention, an air outlet component is provided, including: an air outlet frame 10 and a guide structure 20. An air inlet portion 11 and an air outlet portion 12 are provided on the air outlet frame 10, and the air inlet portion 11 and the air outlet portion 12 are spaced apart. The guide structure 20 is provided in the air outlet portion 12, and the air outlet portion 12 has a first air outlet edge 13 and a second air outlet edge 14 that are relatively arranged. The second air outlet edge 14 is located on the side of the first air outlet edge 13 away from the air inlet portion 11, and the guide structure 20 is located between the first air outlet edge 13 and the second air outlet edge 14; wherein, the guide structure 20 is provided on the side of the first air outlet edge 13 away from the air outlet of the air outlet portion 12, and the guide structure 20 has a avoidance portion 23 on the side close to the first air outlet edge 13.

[0040] By adopting such a setting, by setting an air outlet frame 10 and setting a guide structure 20 in the air outlet part 12 of the air outlet frame 10, so that the guide structure 20 is located between the first air outlet edge 13 and the second air outlet edge 14, the air flow in the air outlet duct can be effectively guided, turbulence can be reduced, turbulent kinetic energy can be reduced, and the air outlet pressure can be uniform, thereby solving the problems of high air outlet noise and low fan efficiency in the prior art of the ceiling fan.

[0041] It should be noted that the first air outlet edge 13 and the second air outlet edge 14 herein can be understood as two oppositely disposed air outlet side surfaces of the air outlet portion 12. "The air guide structure 20 is disposed protruding from the first air outlet edge 13 on a side away from the air outlet of the air outlet portion 12" means that the air guide structure 20 is disposed protruding from the first air outlet edge 13 in a direction opposite to the air outlet direction.

[0042] Specifically, in this embodiment, there are multiple air outlet portions 12 , and the multiple air outlet portions 12 are arranged around the air inlet portion 11 .

[0043] In this embodiment, the air guide structure 20 has a first air guide end 21 and a second air guide end 22 arranged opposite each other along the air outlet direction of the air outlet portion 12. The relief portion 23 of the air guide structure 20 is a relief slope located to the side of the first air guide end 21. This arrangement optimizes airflow at the air outlet position, effectively reducing airflow resistance and turbulence. Specifically, the relief slope here can be understood as being inclined at a predetermined angle in the vertical direction.

[0044] In this embodiment, the second air guide end 22 is spaced apart from the air outlet of the air outlet portion 12. With such a configuration, it is possible to ensure that there is sufficient air flow at the air outlet of the air outlet portion 12 to ensure smooth air flow.

[0045] In this embodiment, the length of the second air-guiding end 22 is l1, and the distance between the second air-guiding end 22 and the air outlet of the air outlet portion 12 is h1, where 0.1≤h1 / l1≤0.4. Arranging the second air-guiding end 22 lower than the air outlet of the air outlet portion 12 allows the airflow to be concentrated in the outlet direction at the air outlet, facilitating air discharge.

[0046] In this embodiment, the length of the first air-guiding end 21 is l2, and the height of the air-guiding structure 20 is h, where 0.2 ≤ l2 / h ≤ 0.5. This height setting allows the air-guiding structure 20 to be contained within the air outlet 12, eliminating the need for a separate air-guiding component and preventing air vortices caused by clearance.

[0047] In this embodiment, a plurality of guide structures 20 are provided in the air outlet portion 12 , and the plurality of guide structures 20 are evenly distributed along the length direction of the air outlet portion 12 , so as to fully improve the guide effect of the wind at the air outlet portion 12 .

[0048] Specifically, there are n guide structures 20, the length of the air outlet of the air outlet portion 12 is L, and the closest distance between the guide structure 20 and the end surface of the air outlet is L. n , where L / L n = n + 1. With such a configuration, the airflow can be easily discharged while the guide structure 20 is added to improve the system efficiency and reduce the lateral flow of the airflow.

[0049] In this embodiment, multiple guide structures 20 are provided within the air outlet 12. The height of each guide structure 20 is h. When (h - 60) / 15 is an integer, n = (h - 60) / 15. When (h - 60) / 15 is not an integer, n is the smallest integer obtained by rounding up (h - 60) / 15. This height setting minimizes lateral airflow at the outlet, reducing airflow noise.

[0050] For example, when (h-60) / 15 is 3.5, n is 4.

[0051] In this embodiment, the air guide structure 20 includes a first air guide portion 24 and a second air guide portion 25 connected to each other along the air outlet direction of the air outlet portion 12. The air guide width of the second air guide portion 25 gradually decreases along the air outlet direction of the air outlet portion 12. This arrangement, through the gradually decreasing arrangement, can more effectively achieve bottom-up air guidance and guide the airflow toward the air outlet.

[0052] In this embodiment, along the outlet direction of the air outlet portion 12, the second air guide portion 25 has a first air guide width d2 and a second air guide width d1, where 1.2 ≤ d2 / d1 ≤ 2; and / or 2 mm ≤ d1 ≤ 2.5 mm. This arrangement guides the airflow without blocking the air flow, increasing the air outlet efficiency of the system and reducing noise.

[0053] Specifically, the first air guiding portion 24 has a structure with a constant air guiding width. Therefore, the air guiding width of the first air guiding portion 24 is also the second air guiding width.

[0054] In this embodiment, the first air guide end 21 and the second air guide end 22 are both rounded surfaces. The avoidance slope is positioned opposite the air inlet 11, and an evaporator 30 is positioned between the avoidance slope and the air inlet 11. The avoidance slope allows the air flowing from the air inlet 11 to the air outlet 12 to smoothly enter and exit the evaporator 30, thanks to the avoidance effect of the avoidance slope. In this embodiment, the air inlet 11 is positioned opposite the fan blades 40, allowing the fan blades 40 to smoothly allow external air to enter the air inlet 11. The air flowing from the air inlet 11 will then undergo heat exchange in the evaporator 30 and flow into the air outlet 12, where it will be discharged.

[0055] In this embodiment, the height h1 of the air guide structure 20 from the air outlet end surface of the air outlet frame 10 is related to the width l1 of the top of the air guide structure 20 , where h1=a×l1, a∈[0.1,0.4].

[0056] The height h of the guide structure 20 is related to the width l2 of the bottom end of the guide structure 20 , where l2 = b×h, b∈[0.2,0.5].

[0057] There is a relationship between the thickness d1 of the top end of the guide structure 20 and the thickness d2 of the bottom end of the guide structure 20 , wherein d2 = c × d1 , c∈[1.2,2], d1∈[2,2.5].

[0058] The number n of the guide structures 20 in the air outlet, the length L of the air outlet and the distance between the guide structures 20 and the nearest end face of the air outlet or the length L of the guide structures 20 n There is a relationship where L n =L / (n+1), n ​​is an integer and n∈[1,5].

[0059] The number n of the guide structures 20 in the air outlet is related to the height h of the guide structure 20 , m=(h-60) / 15, m is rounded up, n=an integer of m+1, h∈[60,120].

[0060] The height h of the guide structure 20 is selected according to the actual lateral flow of air in the air duct of the overhead crane. The lateral flow of air in the existing overhead crane air duct is analyzed and the guide structure 20 is designed. The specific test data of the typical case is as follows: Figures 5 to 7 As shown in the data, the guide structure 20 of the present invention is 20m larger than the original air outlet channel. 3 / h; at the same air volume, the power of the guide structure 20 of the present invention is reduced by approximately 5W at high speed compared to the original air outlet duct; at the same air volume, the noise level of the guide structure 20 of the present invention is reduced by 0.5dB(A) compared to the original air outlet duct. The data shows that the guide structure 20 of the present invention has the significant benefits of improving the efficiency and reducing the noise of the fan system.

[0061] A second embodiment of the present invention provides a ceiling fan, including the air outlet component of the first embodiment. Because the air outlet direction of the fan blades 40 forms a 90° angle with the air outlet direction of the air outlet portion 12, the flow direction of the flow field within the ceiling fan is deflected at a large angle. The provision of the guide structure 20 effectively guides the air outlet, weakening turbulent vortices, limiting the formation of secondary vortices, achieving uniform air outlet, reducing turbulent kinetic energy, lowering startup noise, and improving fan efficiency.

[0062] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: in the present invention, by arranging the air inlet portion 11 and the air outlet portion 12 at intervals on the air outlet frame 10, and arranging the guide structure 20 in the air outlet portion 12, the air flow in the air outlet duct can be effectively guided, turbulence can be reduced, turbulent kinetic energy can be reduced, and the air outlet pressure can be uniform, thereby solving the problems of high air outlet noise and low fan efficiency in the prior art of the ceiling fan.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0065] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0068] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An air outlet component, characterized in that: include: An air outlet frame (10), wherein the air outlet frame (10) is provided with an air inlet portion (11) and an air outlet portion (12), and the air inlet portion (11) and the air outlet portion (12) are spaced apart from each other; A flow guiding structure (20) is arranged in the air outlet portion (12), the air outlet portion (12) having a first air outlet edge (13) and a second air outlet edge (14) arranged opposite to each other, the second air outlet edge (14) being located on a side of the first air outlet edge (13) away from the air inlet portion (11), and the flow guiding structure (20) being located between the first air outlet edge (13) and the second air outlet edge (14); The guide structure (20) is provided on a side of the first air outlet edge (13) that is away from the air outlet of the air outlet portion (12), and a side of the guide structure (20) that is close to the first air outlet edge (13) has a avoiding portion (23); Along the air outlet direction of the air outlet portion (12), the air guide structure (20) has a first air guide end (21) and a second air guide end (22) that are arranged opposite to each other; The length of the second air-guiding end (22) is l1, and the distance between the second air-guiding end (22) and the air outlet of the air outlet portion (12) is h1; Among them, 0.1≤h1 / l1≤0.

4.

2. The air outlet component according to claim 1, characterized in that: The avoidance portion (23) is a avoidance slope, and the avoidance slope is located on the side of the first air guide end (21).

3. The air outlet component according to claim 2, characterized in that: The length of the first air guide end (21) is l2, and the height of the air guide structure (20) is h; Among them, 0.2≤l2 / h≤0.

5.

4. The air outlet component according to claim 1, characterized in that: A plurality of the flow-guiding structures (20) are provided in the air outlet portion (12), and the plurality of the flow-guiding structures (20) are evenly distributed along the length direction of the air outlet portion (12).

5. The air outlet component according to claim 1, characterized in that: n guide structures (20) are provided in each of the air outlet portions (12), and the height of the guide structures (20) is h; When (h-60) / 15 is an integer, n=(h-60) / 15; When (h-60) / 15 is not an integer, n is the smallest integer obtained by rounding up (h-60) / 15.

6. The air outlet component according to claim 1, characterized in that: Along the air outlet direction of the air outlet portion (12), the air guide structure (20) comprises a first air guide portion (24) and a second air guide portion (25) connected to each other; along the air outlet direction of the air outlet portion (12), the air guide width of the second air guide portion (25) gradually decreases.

7. The air outlet component according to claim 6, characterized in that: Along the air outlet direction of the air outlet portion (12), the second air guide portion (25) has a first air guide width d2 and a second air guide width d1 that are arranged opposite to each other; Where, 1.2≤d2 / d1≤2; and / or, 2mm≤d1≤2.5mm.

8. A roof crane, characterized in that: The invention comprises the air outlet component according to any one of claims 1 to 7.

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